Natural Hair Loss Treatment Book

Hair Rejuvenator

Hair rejuvenator is a program carefully researched and developed by a great man who goes by the name of James Davis. James Davis decided to develop this product after he realized that many individuals were suffering from low self-esteem because they had thin hair, which leads to complete hair loss or hair loss on parts of the head. The first step to the development of this product was to research two men who had bald scalp on their head, which caused the hair to fall off and not to grow. One of the discoveries that Davis made was that one of the factors that make individuals have bald scalp was the accumulation of calcium deposits on the scalp, which made the hair not to grow. One of the interesting factors about this program is that all the steps explained involve natural ingredients which make the program safe to use. The program is eligible for use by everyone as it does not involves any technicalities. The program is also eligible for all the genders and works within the shortest time to give permanent results. Continue reading...

Hair Rejuvenator Summary


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Hair Loss Black Book

The hair loss black book is one of the greatest ways to restore your hair forever, this is because it has a lot of information that a lot of people are already looking for in terms of restoring your hair. The methods are 100% natural, it works and it maintains the effects forever. Most other methods will have a limited effect on the drug or the surgery, and this is done in order to make a profit. The hair loss black book is safe and it works for a very long time without ever affecting the person with chemicals. The language is very easy to understand, it makes sense and it is not scientific. This is because the author has intentionally made the book to be a very easy one to understand. It will work regardless of your condition whether it be baldness caused by products, machines, genetics, or by old age. It will show you how the DHT levels will affect the baldness and educate you on how you can reverse this process to get your hair back. It works if you already have baldness, if you are experiencing symptoms of baldness, or if you think you are predisposed to it. Continue reading...

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Drugs For Androgenetic Alopecia

Androgenetic alopecia, commonly known as male and female pattern baldness, is the most common cause of hair loss in adults older than age 40. Up to 50 of men and women are affected. Andro-genetic alopecia is a genetically inherited trait with variable expression. In susceptible hair follicles, dihydrotestosterone binds to the androgen receptor, and the hormone-receptor complex activates the genes responsible for the gradual transformation of large terminal follicles into miniaturized vellus follicles. Treatment of androgenetic areata is aimed at reducing hair loss and maintaining existing hair. The capacity to stimulate substantial regrowth of human hair remains a formidable pharmacological challenge. Finasteride (propecia) inhibits the type II isozyme of 5a-reductase, the enzyme that converts testosterone to dihydrotestosterone (see Chapter 58). The type II 5a-reductase is found in hair follicles. Balding areas of the scalp are associated with increased dihydrotesterone levels and...

Androgenrelated Antitumor Agents

Androgens are steroidal hormones that stimulate and control the masculine primary and secondary characteristics. They exert their action by binding to a nuclear receptor called the androgen receptor (AR)36 and the complex acts as a transcription factor, in a similar way to estrogens. The main androgens are testosterone and its reduced metabolite 5a-dihydrotestosterone (DHT), which has a higher affinity for the AR and three- to tenfold greater molar potency than testosterone. Testosterone 5a - Dihydrotestosterone

Menstrual Irregularities and Bipolar Disorder

PCOS is one of the most common endocrine disorders occurring in reproductive-aged endocrine disorder with an estimated prevalence of between 4 and 6 38 . It is characterized by chronic anovulation and hyperandrogenism 39 . Chronic ano-vulation can lead to menstrual abnormalities and infertility. Hyperandrogenism can manifest as hirsutism (excess hair growth on the face), acne, and male-pattern balding. Metabolic consequences of PCOS include obesity and IR, which may lead to type-2 diabetes mellitus and cardiovascular disease (CVD) 39-42 , and underscores the relationship between reproductive abnormalities and IR in women. PCOS is associated with overweight or obesity in approximately 50 of women with the disorder 43 . Even if they are normal weight, individuals with PCOS tend to have a higher proportion of abdominal body fat 44, 45 , which is a risk factor for both IR 46 and CVD 47 . Lipid abnormalities have also been found at high rates among women with PCOS, including low...

Nerves and Vessels of the SC Space

While the epidermis lacks blood vessels, it does contain nerves that can respond to mechanical, thermal, or noxious stimulation. In contrast, the dermis contains blood vessels, lymph structures, hair roots, sweat glands, and a variety of nerves. These nerves are associated with nerve endings that function in response to vibrations (Pacinian and Meissner corpuscles), pressure (Ruffini endings), and alterations in hair follicle position (16). The deeper part of the dermis contains fewer blood vessels than the more superficial layers. Rather than being straight, the junction between the epidermis and the dermis undulates these undulations, known as rete pegs, are more marked in some areas of the body than in others. Rete pegs increase the area of contact between the layers of skin and help to prevent the epidermis from being sheared off from the dermis. Interestingly, rete pegs are not present in newborn skin but rapidly develop after birth, become very noticeable in a young person's...

Preliminary Clinical Data

In contrast to the near complete alopecia observed with the marketed preparation of paclitaxel, only minimal alopecia was noted at all doses, even after multiple cycles of therapy. Neuropathy was infrequent with occasional patients with non-specific tingling in fingers and toes, which resolved quickly and did not recur. In subsequent trials, clinically significant neuropathy appears to be quite rare. Eight of the eighteen patients received 3 or more cycles of therapy indicating that they had at least stable disease. There was one partial remission lasting 7 months in a patient with a mesothelioma. The pharmacokinetic analyses done as part of this study showed a prolonged half-life (greater than 80 hrs), and increased exposure to both CT-2103 and to free paclitaxel as the dose increased19.

Severe zinc deficiency

Severe zinc deficiency has been observed in experimental human zinc deple-tion,16 in adults and children on total parenteral nutrition solutions lacking zinc17,18 and in patients with acrodermatitis enteropathica - a rare autosomal recessive disorder of zinc uptake associated with mutations in an intestinal zinc transporter gene.19 The clinical manifestations of severe zinc deficiency in humans include slowing or cessation of growth and development, delayed sexual maturation and impotence, characteristic skin rashes, alopecia, chronic and severe diarrhea, immune system deficiencies, impaired wound healing, diminished appetite, impaired taste sensation, night blindness, corneal changes and behavioral disturbances.8,20 Although not a useful indicator of mild zinc deficiency, plasma zinc concentrations, which normally range from 75 to 120 mg dL (11.5-18.5 mmol L), have been found to fall below 70 mg dL with experimental zinc depletion.

Effects of Estrogenic Chemicals on Accessory Reproductive Organs Interaction with Endogenous Androgens

Kidney, and brain in males in the liver, kidney, genitals, and brain, an important effect of androgen is the imprinting of enzyme systems that markedly influence tissue function and, more generally, homeostasis, throughout the remainder of life 1 . Without the secretion of androgen by the fetal testes, the secondary sexual characteristics are those typical of females. However, there is also evidence that estrogen plays an important role in the normal processes of mas-culinization of the brain and accessory reproductive system 161,167,168 . As a result, EDCs that interfere with the normal activity of either androgen or estrogen can disrupt the processes mediating the differentiation of accessory reproductive organs in males these include the efferent ducts, epididymides, vas deferens, and seminal vesicles, which differentiate from the Wolffian (mesonephric) ducts under the local (not systemic) action of testosterone. In contrast, circulating testosterone mediates the differentiation of...

Adverse Effects And Drug Interactions

Fibric acid compounds usually are well tolerated. Side effects, most often Gl-related, may occur in 5-10 of patients but most often are not sufficient to cause drug discontinuation. Other infrequent side effects include rash, urticaria, hair loss, myalgias, fatigue, headache, impotence, and anemia. Minor increases in liver transaminases and alkaline phosphatase have been reported. Clofibrate, bezafibrate, and fenofibrate reportedly can potentiate the action of oral anticoagulants by displacing them from their binding sites on albumin thus, monitoring of the prothrombin time and reduction in anticoagulant dosage may be appropriate.

The Impact of Delivery On the Design of the Drug Discovery Process

Severe, life-threatening diseases, such as cancer require a different drug discovery approach. Safety requirements in most oncology targets tolerate more side effects, which otherwise would severely limit the use of a medicine in other indications. For example, in addition to hair loss, a common side effect of cancer treatment, compounds which affect cell cycle, cell proliferation and apoptosis pathways also cause other serious side effects and make the patient endure severe adverse drug reactions (ADRs).

Complex Regional Pain Syndrome

The initial signs and symptoms of CRPS may begin at the time of injury or be delayed for weeks. The clinical presentation is characterized by pain, frequently out of proportion to the injury, changes in cutaneous sensitivity (allodynia and hyperalgesia), autonomic dysfunction, trophic changes, and motor dysfunction. Autonomic dysfunction may manifest as edema of the affected part, sudomotor changes (hypo- or hyperhidrosis), changes in skin coloration (red or pale), and skin temperature differences. Cutaneous vasomotor changes (i.e., red, mottled, or ashen color increased or decreased temperature) may be present and edema may be considerable and locally confined. Other symptoms such as trophic abnormalities (i.e., shiny, atrophic skin cracking or excess growth of nails bone atrophy hair loss) and motor abnormalities (weakness, tremors, spasm, dystonia) may also be apparent upon clinical examination. Additionally, range of motion is often limited, sometimes leading to joint contractures.

Known Effects of Plant Antiandrogens in Humans and Rodents

Permixon is an antiandrogenic extract of the saw palmetto that is used in some European countries to treat androgen-dependent prostatic diseases 53 . Clinical studies indicate that it is effective in this regard. Mechanistically, it has been reported to act as an AR antagonist 54 and to inhibit the activity of 5a-reductase activity, which metabolizes testosterone to dihydrotestosterone (DHT) 55 . Rhodes et al. 56 reported that permixon failed to inhibit testosterone- or DHT-stimulated prostate growth in castrated rats, suggesting that it was not antiandrogenic, while, in contrast, Paubert-Braquet et al. 57 reported that the lipidosterolic extract of Serenoa repens (permixon) inhibited the effects

Idarubicin And Daunorubicin

The toxic manifestations of daunorubicin and idarubicin include bone marrow depression, stomatitis, alopecia, GI disturbances, and dermatological manifestations. Cardiac toxicity is a peculiar adverse effect observed with these agents. it is characterized by tachycardia, arrhythmias, dyspnea, hypotension, pericardial effusion, and congestive heart failure that responds poorly to digitalis (see below).

Androgens In Prostate Cancer

The main androgen present throughout the body is testosterone. In the prostate, it is locally converted to dihydrotestosterone which binds to the androgen receptor with a 10-fold higher affinity. This reaction is catalyzed by 5a-reductase (Figure 19.7). The androgen receptor is also present in mesenchymal stroma cells. These are stimulated by testosterone and dihydrotestosterone to produce FGF and IGF growth factors that regulate the proliferation and survival of the epithelium, particularly of those basal cells, which lack an active androgen receptor. Figure 19.7 The 5a-reductase reaction converting testosterone to dihydrotestosterone The part of the steroids at which the reaction takes place are drawn in bold. Figure 19.7 The 5a-reductase reaction converting testosterone to dihydrotestosterone The part of the steroids at which the reaction takes place are drawn in bold.

Katp Channel Openers Minoxidil

Flattened and inverted T waves frequently are observed in the electrocardiogram following the initiation of minoxidil treatment. These are not ischemic in origin and are seen with other drugs that activate K+ channels these drugs can accelerate myocardial repolarization, shorten the refractory period, and may lower the ventricular fibrillation threshold in ischemic myocardium. Hypertrichosis occurs in patients who receive minoxidil for extended periods, probably related to K+ channel activation. Growth of hair occurs on the face, back, arms, and legs and is particularly upsetting to women. Frequent shaving or depilatory agents can be used to manage this problem. Topical minoxidil (rogaine) is used for male pattern baldness it may have cardiovascular effects in some individuals.

How Can I Use Glyco-a Antiminth

Albendazole occurs as a white crystalline powder that is virtually insoluble in water. The oral absorption of albendazole is enhanced by a fatty meal. The drug undergoes rapid and extensive first-pass metabolism to the sulfoxide, which is the active form in plasma. The elimination half-life of the sulfoxide ranges from 10 to 15 hours. Considerable biliary excretion and enterohepatic recycling of albendazole sulfoxide occurs. Albendazole is generally well tolerated in single-dose therapy for intestinal nematodes. The highdose, prolonged therapy required for clonorchiasis or echinococcal disease therapy can result in adverse effects such as bone marrow depression, elevation of hepatic enzymes, and alopecia.

Testosterone And Other Androgens

Testosterone has many different effects in tissues, both directly and after its metabolism to two other active steroids, dihydrotestosterone and estradiol (Figure 58-3). The enzyme 5a-reductase catalyzes the conversion of testosterone to dihydrotestosterone. Although testosterone and dihy-drotestosterone both act via the androgen receptor (AR), dihydrotestosterone binds with higher affinity and activates gene expression more efficiently. Two forms of 5a-reductase have been identified type I, found predominantly in nongenital skin, liver, and bone, and type II, found predominantly in urogenital tissue in men and genital skin in men and women. The enzyme complex aromatase (CYP19), which is present in many tissues, converts testosterone to estradiol. This conversion results in approximately 85 of circulating estradiol in men the remainder is secreted directly by the testes. Testosterone is metabolized in the liver to androsterone and etiocholanolone (Figure 58-3), which are biologically...

Chronic Arsenic Poisoning

The most common early signs of chronic arsenic poisoning are muscle weakness and aching, skin pigmentation (especially of the neck, eyelids, nipples, and axillae), hyperkeratosis, and edema. GI involvement is less prominent in long-term exposures. Other signs and symptoms that should arouse suspicion of arsenic poisoning include garlic odor of the breath and perspiration, excessive salivation and sweating, stomatitis, generalized itching, sore throat, coryza, lacrimation, numbness, burning or tingling of the extremities, dermatitis, vitiligo, and alopecia. Poisoning may begin insidiously with symptoms of weakness, languor, anorexia, occasional nausea and vomiting, and diarrhea or constipation. Subsequent symptoms may simulate acute coryza. Dermatitis and keratosis of the palms and soles are common features. Mee's lines are found characteristically in the fingernails (white transverse lines of deposited arsenic that usually appear 6 weeks after exposure). Desquamation and scaling of...

Lcms Analysis Of Natural Androgens In Human Samples

29 steroids (12 androstane-type), 3-one,4-enes, unconjugated ketones, hydroxyls only T glucuronide, T sulfate, epitestosterone glucuronide, epitestosterone sulfate 8 glucuronide standards T, epitestosterone, nandrolone, androsterone, 5a-estran-3a-ol-17-one, 5P-estran-3a-ol-17-one, 17a-methyl-5a-androstane-3a,17P-diol, 17a-methyl-5 P-androstane-3a, 17P-diol T, dihydrotestosterone, 4-androstene-3,17-dione dihydrotestosterone Dehydroepiandrosterone metabolites androst-5-ene-3 ,17 -diol, androst-4-ene-3,17-dione, T, 5a-dihydrotestosterone, androsterone, 7a-hydroxydehydro-epiandrosterone Dihydrotestosterone T, dihydrotestosterone T, dihydrotestosterone, estradiol, 5a-androstane-3a,17 -diol

Hair growth promoter and method of using same

Abstract A hair growth promoter capable of acting as a cosmetic, reducing alopecia, eliminating alopecia, increasing hair growth or any combination thereof is disclosed. The hair growth promoter comprises a colloidal silver, copper and gold complex in a cosmetically acceptable carrier, formed from silver, copper and gold colloids made electrically. The promoter is applied to a treatment area in an amount sufficient to wet the scalp at least one time a week. Excerpt(s) The present invention relates to a hair growth promoter containing a colloidal silver, copper and gold complex in a cosmetically acceptable carrier formed from a mixture of silver, copper and gold colloids made electrically. The promoter is capable of acting as a cosmetic, reducing alopecia, eliminating alopecia, stimulating hair growth or any combination thereof. Hair loss is a common problem, in both men and women, the most common form being androgenetic alopecia (AGA) where males lose scalp hair as they get older...

Efficacy of Mycophenolate Mofetil in Patients with Diffuse Proliferative Lupus Nephritis

The improvements in the degree of proteinuria (protein in the urine) and the serum albumin (protein levels in the blood) and creatinine concentrations were similar in the two groups. One patient in each group discontinued treatment because of side effects. Infections were noted in 19 percent of the patients in Group 1 and in 33 percent of those in Group 2. Other adverse effects occurred only in group 2 they included amenorrhea (23 percent), hair loss (19 percent), leukopenia (10 percent), and death (10 percent). The rates of relapse were 15 percent in Group 1, and 11 percent in Group 2. The authors conclude that for the treatment of diffuse proliferative lupus nephritis, the combination of mycophenolate mofetil and prednisolone is as effective as a regimen of cyclophosphamide and prednisolone followed by azathioprine and prednisolone, with similar levels of toxicity. 2 figures. 4 tables. 15 references.

Cytotoxic And Immunosuppressant Drugs

Calcineurin inhibitors Cyclosporine (sandimmune, neoral, sangcya) is a potent immunosuppressant isolated from the fungus Tolypocladium inflatum. Its mechanism of action is discussed in Chapter 52. The presence of calcineurin in Langerhans' cells, mast cells, and keratinocytes may explain the therapeutic efficacy of cyclosporine and the other calcineurin inhibitors (e.g., tacrolimus and pimecrolimus see below). Cyclosporine is FDA-approved for the treatment of psoriasis. other cutaneous disorders that typically respond well to cyclosporine are atopic dermatitis, alopecia areata, epidermolysis bullosa acquisita, pemphigus vulgaris, bullous pemphigoid, lichen planus, and pyoderma gangrenosum. The usual initial oral dose is 3-5 mg kg day given in divided doses.

Testosterone Testosterone

Testosterone and its active metabolites have many physiological effects. Testosterone and dihydrotestosterone are responsible for the differentiation of internal and external genitalia in the fetus and maturation during puberty. Testosterone exhibits anabolic effects it stimulates muscle protein synthesis that leads to larger muscle mass, increased muscle strength and resistance. Estradiol in the fetus is associated with the sexual differentiation of the brain. During puberty, estradiol accelerates the maturation of Testosterone and dihydrotestosterone act via the androgen receptor, which belongs to the nuclear receptor superfamily.1 Binding of testosterone or dihydrotestosterone to the receptor initiates conformational changes that allow translocation of the complex into the nucleus, where it acts as a transcription factor and stimulates the expression of certain genes.

Exceptions To The Rules

Cisplatin (Fig. 2.6) is a cancer chemotherapy drug. With only 11 atoms, it is smaller and less complex than most drugs. As implied by the discussions of specificity earlier in this chapter, one might expect this to result in unwanted side effects. Indeed, cisplatin use often causes severe nausea, hair loss, weight loss (perhaps indirectly from the nausea), kidney damage, hearing loss, sometimes some nerve damage, and electrolyte disturbances. However, cisplatin was originally the only hope to extend the life of patients with many forms of cancer. Thus, the severe side effects were acceptable. Today, cisplatin is still used for some forms of cancer, often in small doses mixed with other drugs having less severe side effects.

Cobalamin conjugates as drug delivery devices

Most of the front-line chemotherapeutic drugs such as doxorubicin, taxol, etopo-side and the alkylating agents have a dose-limiting toxicity that arises from interaction of the drug with an organ system that is remote from the site of cancer. If these cytotoxic drugs could be delivered selectively to cancer cells, their therapeutic index would be greatly increased and the serious side-effects such as bone marrow suppression, cardiotoxicity, nephrotoxicity, hepatotoxicity, neuro-toxicity, hair loss and nausea might be eliminated, or at least reduced.

Molecular Mechanisms Of Cancer Chemotherapy

Symbole Wetterkarten

Differences in proliferation Many cancers contain a higher proliferative fraction than normal tissues, and many cancer cells replicate faster than most normal cells. These differences constituted the main rationale in the early years of cancer chemotherapy development. Unfortunately, many normal tissues, too, contain fast-replicating compartments. Accordingly, treatments that aim purely at rapidly replicating cells cause damage to such tissues as well. For this reason, side effects of chemotherapy are common in organs with a rapid turnover, primarily the hematopoetic system, gut and skin. Adverse side effects of chemotherapy include leukopenia (low numbers of leukocytes), diarrhoea (as a consequence of damage to the gut mucosa), and alopecia (hair loss). These side effects can be severe and limit the dose of cytostatic drugs that can be applied. The severity of adverse effects in clinical trials and routine use of drugs is categorized from I-V for each type of effect. Grade III or IV...

Factors Impacting Ocular Transporters And Metabolizing Enzymes

Induction of transporter proteins in ocular tissues has not been studied extensively. Ohtsuki et al. (75) recently found in a comparison study between brain and retinal capillary endothelial cells that, despite structural and functional similarity between the two cell types, there is a difference in expression of organic anion transporter 3 (oat3) mRNA in response to treatment with dihydrotestosterone (DHT), an androgen receptor ligand. In brain capillary endothelial cells, which selectively express the androgen receptor gene, OCT3 mRNA, as well as OCT3 transport activity, was induced by DHT and this induction was suppressed by flutamide. In contrast, oat3 mRNA expression in retinal capillary endothelial cells was not affected by DHT treatment.

Liposomes And Nanoparticles In Anticancer Drug Targeting

Daunorubicin and doxorubicin are two of the drugs most commonly formulated as liposomes, and PEGylated liposomal doxorubicin (doxil) is employed against Kaposi's sarcoma and other solid tumors with mild myelosuppression, minimal hair loss, and a low risk of cardiotoxicity.61 In these liposomes, doxorubicin is transported in the hydrophilic internal aqueous compartment (Fig. 11.29).

General Physical Examination

The patient's skin should then be evaluated for color, temperature, and signs of rashes or edema. The practitioner should also be attentive to a patient's hair and nails, as patients with complex regional pain syndrome may present with hair loss over the affected extremity and the nails may show abnormalities in texture and smoothness. The skin's color and temperature allow the physician to assess the vascular status of a patient, as poorly perfused regions may appear cyanotic and cool to the touch. Often times, patients with vascular abnormalities will suffer from concurrent neuropathic pain.

Inhibitors of 5areductase

The androgenic activity in the prostate is due to 5a-dihydrotestosterone (DHT), since 95 of testosterone entering the prostate is converted to the more potent androgen DHT by the 5a-reductase enzyme of the type 2. Hence, blockade of that enzyme, whose expression is largely restricted to the prostate, facilitates the inhibition of testosterone action on urogenital sinus tissue derivatives, notably

Adverse effects

Weight gain is greater in patients who are overweight to begin with. Some patients show decreased thyroid levels and rarely goiter. About 5 develop hypothyroidism and 30 have elevated thyroid-stimulating hormone levels. Polyuria (passing an excessive quantity of urine) or polydipsia (excessive thirst) occurs in one out of five patients. Aggravation of psoriasis and alopecia can occur but hair usually re-grows with or without the lithium.


Is a true risk factor for prostate cancer 96 - 98 . Three mechanisms by which vasectomy could enhance risk have been proposed elevation of circulating androgens, immunologic mechanisms involving anti-sperm antibodies, and reduction of seminal fluid production 34,77,78,84,89,97,99 . Most studies of pi-tuitary-gonadal function did not find any effect of vasectomy 100-104 , but some studies found changes in hormone levels 89,99,105-109 . There are reports in vasectomized men of slightly elevated circulating testosterone levels 34, 99, 107, 110 , elevated levels of 5a-dihydrotestosterone (DHT), the active metabolite of testosterone in the prostate, a decrease in SHBG 89 , and an increase in the ratio of testosterone to SHBG 34 . These reports suggest an elevation of circulating free testosterone following vasectomy which may be a critical factor associated with risk for prostate cancer, but specific mechanisms whereby vasectomy could influence the hypothalamo-pituitary-gonadal axis are...

Skin Appendages

Hair follicles and their associated sebaceous glands (pilosebaceous glands), eccrine glands, apocrine glands, and finger and toenails are all considered skin appendages. Hair follicles are found everywhere within the skin except for the soles of the feet, the palms of the hand, the red portion (vermilion border) of the Hps, and the external genitalia. All are formed from fetal epidermal cells. Hair differs markedly in its prominence from place to place over the body. Delicate primary hair is found on the fetus secondary hair or down covers the adult forehead terminal hair ordinarily blankets the scalp and is found as pubic and axillary (underarm) hair (2). A hair (hair shaft) emerges from & follicle, as shown in Figure 1. Each follicle is set within the skin at a slight angle. Each consists of concentric layers of cellular and noncellular components, and each is anchored to the surrounding connective tissue by an individual strand of smooth muscle, the arrector pilorum. Contraction of...

Valproic Acid

TOXICITY The most common side effects are transient GI symptoms, including anorexia, nausea, and vomiting in -16 of patients. CNS effects include sedation, ataxia, and tremor these symptoms occur infrequently and usually respond to a decrease in dosage. Rash, alopecia, and stimulation of appetite have been observed occasionally, and weight gain has been seen with chronic valproic acid treatment. Elevation of hepatic transaminases is observed in up to 40 of patients and often occurs asymptomatically during the first several months of therapy.

Maria A Blasco

Telomeres protect the chromosome ends from unscheduled DNA repair and degradation. Telomeres are heterochromatic domains composed of repetitive DNA (TTAGGG repeats) bound to an array of specialized proteins. The length of telomere repeats and the integrity of telomere-binding proteins are both important for telomere protection. In addition, we have recently shown that telomere length is regulated by a number of epigenetic modifications, thus pointing to a higher-order control of telomere function. A key process in organ homeostasis is the mobilization of stem cells out of their niches. Defects in organ homeostasis are present both in cancer and in aging-related diseases. Here we will discuss that telomere length and the catalytic component of telomerase, Tert, are critical determinants for the mobilization of epidermal stem cells. On one hand, we will show that telomere shortening in the absence of telomerase negatively impacts on the mobilization of epidermal stem cells. On the other...


Selenium is found in many plants and thought to be utilized as a defense mechanism against being eaten by herbivores. Animals that consume some plants growing in locations where selenium soil concentrations exceed 2 ppm can become poisoned over time. Some plants appear to require selenium for growth while others do not. Animal toxicity has been described based on livestock symptoms including blind staggers or alkali disease. Blind staggers, the more serious symptom, occurs within weeks of livestock consuming plants growing in high soil selenium locations. Alkali disease develops over months in animals grazing on plants in high selenium soils that contain levels (5 to 40 ppm) of selenium. Although he did not know of the element, Marco Polo was one of the first to write about selenium toxicity in the thirteenth century. He noticed while in western China that the sloughing off of the hooves of horses was associated with their consumption of certain plants in the regions. Today we know he...


EGFR less than 10mL minute 1.73m2 Pregnancy see notes above Breast-feeding see notes above Side-effects see notes above also ileus, dry mouth tachycardia, palpitation, arrhythmias, angina, transient ischaemic attacks, cerebral haemorrhage, myo-cardial infarction, syncope dyspnoea, bronchitis asthenia, nervousness, sleep disturbances hot flushes alopecia, sweating, skin reactions including Stevens-Johnson syndrome, toxic epidermal necro-lysis, and psoriasis-like efflorescence Dose

Untoward Effects

Dose-limiting toxicities of systemic IFN are myelosuppression neurotoxicity (e.g., somnolence, confusion, depression) autoimmune disorders including thyroiditis and rarely, cardiovascular effects with hypotension. Elevations in hepatic enzymes and triglycerides, alopecia, proteinuria and azotemia, interstitial nephritis, autoantibody formation, and pneumonia may occur. Alopecia and personality change are common in IFN-treated children. The development of neutralizing antibodies to exogenous IFNs may rarely be associated with loss of clinical responsiveness. Safety during pregnancy is not established (category C).

Drug Effects

Receptor density of both platelets and aortic tissue (184). Although TP receptor expression in both platelets and vascular tissue was stimulated by androgens, tissue-specific regulation was demonstrated (180). TP receptors were up-regulated in vascular tissues, but not in platelets, by the active metabolite of testosterone, dihydrotestosterone. In contrast, admin-istration of testosterone to healthy men increased platelet TP receptor density greater than two fold without a change in Kd (185).


TRPV1 seems to be important for several skin diseases. Importantly, TRPV1 is involved in the control of human hair growth. TRPV1 activation by capsaicin in native human hair follicle cells causes inhibition of hair shaft prolongation, suppression of hair follicle cell proliferation, induction of apop-tosis, and premature hair follicle cell regression (Bodo et al., 2005). In parallel, intrafollicular transforming growth factor (TGFP2) and other known endogenous hair growth inhibitors (e.g., interleukin 1P) were upregulated, and hair growth promoters (e.g., insulin-like growth factor 1, hepatocyte growth factor, stem cell factor) were downregulated (Bodo et al., 2005 Biro et al., 2006). TRPV1 may also be a target for modulating epithelial cell growth disorders. Cell layers in the skin are characterized by a Ca2+ gradient and Ca2+ i is sensitively regulated in keratinocytes, which express TRPV1. TRPV3 is highly expressed in the skin, both in keratinocytes and in cells surrounding hair...


The clinical toxicity of vincristine is mostly neurological. The more severe neurological manifestations may be avoided or reversed either by suspending therapy or reducing the dosage upon occurrence of motor dysfunction. Severe constipation may be prevented by a prophylactic program of laxatives and hydrophilic (bulk-forming) agents and usually is a problem only with doses above 2 mg m2. Alopecia occurs in 20 of patients given vincristine however, it is always reversible, frequently without cessation of therapy. Although less common than with vinblastine, leukopenia may occur with vincristine, and thrombocytopenia, anemia, polyuria, dysuria, fever, and GI symptoms have been reported occasionally. The syndrome of inappropriate secretion of antidiuretic hormone occasionally has occurred during vincristine therapy. In view of the rapid action of the vinca alkaloids, it is advisable to prevent hyperuricemia by the administration of allopurinol.

Alkyl Sulfonates

The toxic effects of busulfan are related to its myelosuppressive properties prolonged throm-bocytopenia may occur. Occasional patients experience nausea, vomiting, and diarrhea. Long-term use leads to impotence, sterility, amenorrhea, and fetal malformation. Rarely, patients develop asthenia and hypotension. High-dose busulfan causes VOD of the liver in up to 10 of patients, as well as seizures, hemorrhagic cystitis, alopecia, and cataracts. The coincidence of VOD and hepatotoxicity is increased by its coadministration with drugs that inhibit CYPs, including imidazoles and metronidazole, possibly by inhibition of the clearance of busulfan and or its toxic metabolites.

Theresa Bridges

N. and Turner, Z. (2002) Menkes steely hair disease and the occipital horn syndrome, in Connecitve tissue and Its Heritable Disorders Molecular, Genetic, and Medical Aspects, 2nd ed. (Royce, P. M. and Steinmann, B., eds.), Wiley, New York, in press. 52. Maehara, M., Ogasawara, N., Mizutani, N., Watanabe, K., and Suzuki, S. (1983) Cytochrome c oxidase deficiency in Menkes kinky hair disease. Brain Dev. 5, 533-540. 54. Sparaco, M., Hirano, A., Hirano, M., DiMauro, S., and Bonilla, E. (1993) Cytochrome c oxidase deficiency and neuronal involvement in Menkes' kinky hair disease, immunohistochemical study. Brain Pathol. 3, 349-354. 55. Morgello, S., Peterson, H. C., Kahn, L. J., and Laufer, H. (1988) Menkes kinky hair disease with ragged red fibers. Dev. Med. Child Neurol. 30, 808-820. 56. Inagaki, M., Hashimoto, K., Yoshino, K., Ohtani, K., Nonaka, I., Arima, M., et al. (1988) Atypical form of Menkes kinky hair disease with mitochondrial NADH-CoQ reductase deficiency....


The toxic manifestations of doxorubicin are similar to those of daunorubicin. Myelosuppres-sion is a major dose-limiting complication, with leukopenia usually reaching a nadir during the second week of therapy and recovering by the fourth week thrombocytopenia and anemia follow a similar pattern but usually are less pronounced. Stomatitis, GI disturbances, and alopecia are common but reversible. Erythematous streaking near the site of infusion ( adriamycin flare ) is a benign local allergic reaction and should not be confused with extravasation. Facial flushing, conjunctivitis, and lacrimation may occur rarely. The drug may produce severe local toxicity in irradiated tissues (e.g., the skin, heart, lung, esophagus, and GI mucosa). Such reactions may occur even when the two therapies are not administered concomitantly. newer analogs of doxorubicin Valrubicin (valstar) is approved for intravesical therapy of bacille Calmette-Guerin-refractory urinary bladder carcinoma in situ in...


Phase of disappearance (t1 2 20 minutes), dacarbazine is removed from plasma with a terminal t1 2 of 5 hours. The t1 2 is prolonged in the presence of hepatic or renal disease. Almost 50 of the compound is excreted intact in the urine by tubular secretion. Elevated urinary concentrations of 5-aminoimidazole-4-carboxamide are derived from the catabolism of dacarbazine, rather than by inhibition of de novo purine biosynthesis. Dacarbazine (dtic-dome, others) for malignant melanoma is given in doses of 3.5 mg kg day, intravenously, for a 10-day period, repeated every 28 days. Alternatively, 250 mg m2 can be given daily for 5 days and repeated every 3 weeks. Extravasation of the drug may cause tissue damage and severe pain. At present, dacarbazine is employed in combination regimens for the treatment of Hodgkin's disease. It is less effective against malignant melanoma and adult sarcomas. The toxicity of DTIC includes nausea and vomiting in 90 of patients vomiting usually develops 1-3...


Nausea and vomiting may occur at doses 200 mg day patients receiving 800 mg daily may require parenteral antiemetics. Regardless of dose, side effects in patients receiving 7 days of drug include nausea, headache, skin rash, vomiting, abdominal pain, and diarrhea (all at 1-4 ). Reversible alopecia may occur with prolonged therapy at 400 mg daily. Rare deaths due to hepatic failure or Stevens-Johnson syndrome have occurred. Fluconazole is associated with skeletal and cardiac deformities in infants born to women taking high doses during pregnancy and should be avoided during pregnancy (category C).

Menkes Disease

Menkes' syndrome is an X-linked (Xq13.3) recessive disorder associated to copper deficiency, lethal in the early childhood (27). The most striking feature of this disease is the coarse and hypopigmented hair therefore, it is also called kinky or steely hair disease. Menkes' children show impaired synthesis of collagen and elastin. Furthermore, they are severely mentally retarded altered brain development and neurodegeneration have been detected by postmortem histological assay (28). In particular, diffuse atrophy, focal degeneration of gray matter, and prominent neuronal loss has been detected in the cerebellum. Purkinje cells show abnormal dendridic arborization and focal axonal swelling. These features are present at birth, indicating that copper is essential for prenatal growth and development of the central nervous system. The molecular basis of this syndrome has recently been discovered, by identifying a mutated gene (ATP7A) encoding for a P-type cation-transporting ATPase...

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