Piedra

Either of two diseases resulting from fungal infection of the hair shafts. Black piedra occurs mainly in and on the hairs of the scalp and is caused by Piedraia hortae; white piedra occurs in and on the hairs of the scalp, beard, moustache and genital areas and is caused by Trichosporon beigelii.

Also Known As:

Networked: 26 relevant articles (2 outcomes, 4 trials/studies)

Relationship Network

Disease Context: Research Results

Related Diseases

1.	Human Influenza (Influenza)
2.	Infection
3.	Malnutrition
4.	Stomatitis
5.	Peritonitis

Experts

1.	Hierro, Almudena: 1 article (12/2015)
2.	Bolívar, Juan P: 1 article (12/2015)
3.	Vaca, Federico: 1 article (12/2015)
4.	García-Trapote, Ana: 1 article (12/2015)
5.	Luque, Carlos J: 1 article (12/2015)
6.	Castellanos, Eloy M: 1 article (12/2015)
7.	Jara, Alejandra: 1 article (07/2015)
8.	Fugassa, Martín Horacio: 1 article (07/2015)
9.	Taglioretti, Verónica: 1 article (07/2015)
10.	Cea, Mara: 1 article (07/2015)

Drugs and Biologics

Drugs and Important Biological Agents (IBA) related to Piedra:

1.	Itraconazole (Sporanox)FDA LinkGeneric 09/01/2002 - "Our study was intended to assess the efficacy of itraconazole in the treatment of uncomplicated white piedra affecting the scalp hair. " 09/01/2002 - "Itraconazole therapy for white piedra affecting scalp hair."
2.	terbinafine (Lamisil)FDA LinkGeneric 04/01/1994 - "This case demonstrates that terbinafine is effective in the treatment of black piedra." 04/01/1994 - "Black piedra: the first case treated with terbinafine (Lamisil)." 05/01/1993 - "Terbinafine for black piedra."
3.	EVAC protocol (CAVE)IBA 07/01/2015 - "The aim of the present study was to examine the gastrointestinal parasite present in camelid coprolites collected from the archaeological site Cerro Casa de Piedra, cave 7 (CCP7), Patagonia, Argentina. " 11/01/2004 - "However, the four strongly eye and pigment reduced cave populations, Piedras, Sabinos, Tinaja, and Curva, form a separate cluster, which is not sister group to the surface populations from the same locality. "
4.	Influenza Vaccines (FluMist)IBA 05/16/2007 - "Vaccine 2005;23:1540-8; Piedra PA, Gaglani MJ, Riggs M, Herschler G, Fewlass C, Watts M, et al. Live attenuated influenza vaccine, trivalent, is safe in healthy children 18 months to 4 years, 5 to 9 years, and 10 to 18 years of age in a community-based, nonrandomized, open-label trial. " 05/16/2007 - "That year, a field study of trivalent live-attenuated influenza vaccine (LAIV-T) was conducted in Temple-Belton, Texas, as part of a larger community-based, non-randomized, open-label study in three communities that began in August 1998 [Gaglani MJ, Piedra PA, Herschler GB, Griffith ME, Kozinetz CA, Riggs MW, et al. Direct effectiveness of the trivalent, cold-adapted, influenza virus vaccine (CAIV-T) against the 2000-2001 influenza A (H1N1) and B epidemic in healthy children. " 05/16/2007 - "Arch Pediatr Adolesc Med 2004;158:65-73; Piedra PA, Gaglani MJ, Kozinetz CA, Herschler G, Riggs M, Griffith M, et al. Herd immunity in adults against influenza-related illnesses with use of the trivalent-live attenuated influenza vaccine (CAIV-T) in children. "
5.	Oral ContraceptivesIBA 01/01/1973 - "9634 patients (21-39 years, with at least 1 normal pregnancy) with no previous experience with oral contraceptives or IUDs, seen at clinics in Rio Piedras, Caguas, and Ponce, Puerto Rico from July 1961 to October 1969 to study their changing patterns in cervical cytology were divided randomly into 2 groups, of which 4846 were given oral contraceptive, Enovid, and 4788 provided with a vaginal contraceptive excluding IUDs, and followed for a period of 6 months-8 years. "
6.	Infecundin (Enovid)FDA Link 01/01/1973 - "9634 patients (21-39 years, with at least 1 normal pregnancy) with no previous experience with oral contraceptives or IUDs, seen at clinics in Rio Piedras, Caguas, and Ponce, Puerto Rico from July 1961 to October 1969 to study their changing patterns in cervical cytology were divided randomly into 2 groups, of which 4846 were given oral contraceptive, Enovid, and 4788 provided with a vaginal contraceptive excluding IUDs, and followed for a period of 6 months-8 years. "
7.	NitrogenIBA 01/01/2015 - "Bradyrhizobium sp. Ai1a-2 is is an aerobic, motile, Gram-negative, non-spore-forming rod that was isolated from an effective nitrogen fixing root nodule of Andira inermis collected from Tres Piedras in Costa Rica. " 05/01/2005 - "To assess a potential nutritional interdependency, nitrogen fluxes between epiphyllous liverworts and their host leaves (Carludovica drudei, Costus laevis, Dieffenbachia concinna, Pentagonia wendlandii) were quantified by in situ15N-labelling techniques in a lowland rainforest, Piedras Blancas National Park, Costa Rica. "
8.	PrebioticsIBA 03/01/2013 - "A cleanse supplementation containing magnesium, chia, flaxseed, lemon, camu camu, cat's claw, bentonite clay, tumeric, pau d'arco, chanca piedra, stevia, zeolite clay, slippery elm, garlic, ginger, peppermint, aloe, citrus bioflavonoids, and fulvic acid was added before each meal during week 2. During week 3, the cleanse supplementation was replaced with probiotic and prebiotic supplementation. "
9.	MicrocystinsIBA 06/01/2005 - "Comparison of cell number and concentration of total microcystins indicated that the phytoplankton in San Roque Reservoir contained more toxic cyanobacterial strains than did the Paso de las Piedras Reservoir. " 06/01/2005 - "Thus, seasonal variability in the concentrations of total microcystins and cyanobacterial cells was studied in two reservoirs: San Roque and Paso de las Piedras. "
10.	Cytochromes b (Cytochrome b)IBA 09/01/2013 - "limbatus, and one unnamed lineage from Gran Piedra mountains had lower mitochondrial divergences to each other (<6% in cytochrome b; <3% in 16S) and extensive Rag-1 haplotype sharing, suggesting that their species status requires careful revision. "

Therapies and Procedures

1.	Radiotherapy 03/01/2002 - "A sample (n = 50) with different types of cancer receiving radiotherapy treatment were surveyed at the Oncology Hospital of the University of Puerto Rico Medical Center at Río Piedras. "
2.	Peritoneal Dialysis 01/01/1985 - "beigelii could only be assigned a definite pathogenic role in 6 cases of genital white piedra, and in one case of peritonitis associated with chronic ambulatory peritoneal dialysis, we believe that this organism was pathogenic in many cases of skin infection. "
3.	Renal Dialysis (Hemodialysis) 08/01/1985 - "[Psychological profile of the patients in the hemodialysis unit of the Río Piedras University Hospital]."
4.	Day Care (Partial Hospitalization) 09/01/2008 - "It is presented an outbreak of scalp white piedra seen in 5.8% of the children frequenting a day care in Northeastern of São Paulo State, Brazil. " 09/01/2008 - "An outbreak of scalp white piedra in a Brazilian children day care."