All articles starting with J

Juvenile myoclonic epilepsy

Juvenile myoclonic epilepsy (JME, Janz syndrome) is a genetic generalized epilepsy beginning around puberty with early-morning myoclonic jerks, tonic-clonic seizures, and absences; about 80% respond to valproate but relapse after withdrawal is common.

Juvenile nasopharyngeal angiofibroma

Juvenile nasopharyngeal angiofibroma (JNA), a benign fibrovascular tumor of the nasopharynx in adolescent males, treated with embolization plus endoscopic surgery; recurrence 5-55%, bleeding the main risk.

Juvenile overlap myositis

Juvenile overlap myositis (ORPHA:329894) is a rare childhood-onset idiopathic inflammatory myopathy combined with features of other autoimmune diseases such as lupus or scleroderma, occurring in 6–11% of juvenile myositis patients.

Juvenile Paget disease

Juvenile Paget disease (hereditary hyperphosphatasia, OMIM 239000): ultra-rare autosomal recessive bone disorder from TNFRSF11B/osteoprotegerin loss, causing rapid bone turnover, fractures, deafness, retinopathy; about 100 cases reported.

Juvenile polymyositis

Juvenile polymyositis (juvenile PM, JPM), ICD-11 4A41.10, is a rare juvenile idiopathic inflammatory myopathy with onset before 18, causing progressive muscle weakness without dermatomyositis rashes; 2-8% of juvenile IIMs.

Juvenile polyposis syndrome

Juvenile polyposis syndrome (JPS) is a rare autosomal dominant hamartomatous polyposis disorder caused by SMAD4 or BMPR1A variants, causing GI juvenile polyps, 11%-86% GI cancer risk, and SMAD4-linked HHT overlap.

Juvenile primary lateral sclerosis

Juvenile primary lateral sclerosis (JPLS, OMIM 606353) is a very rare autosomal recessive motor neuron disease caused by ALS2 mutations, beginning in childhood with progressive spasticity, loss of walking, and loss of speech.

Juvenile psoriatic arthritis

Juvenile psoriatic arthritis (JPsA) is a subtype of juvenile idiopathic arthritis in which chronic arthritis beginning before age 16 occurs together with psoriasis, dactylitis, or nail changes.

Juvenile temporal arteritis

Juvenile temporal arteritis (JTA), non-giant cell granulomatous temporal arteritis with eosinophilia, is a rare benign vasculitis of the superficial temporal arteries in people under about 45, presenting as temporal nodules without systemic symptoms, first described by Lie et al. in 1975.

Juvenile xanthogranuloma

Juvenile xanthogranuloma (JXG), the most common non-Langerhans cell histiocytosis, a benign self-regressing reddish-yellow skin nodule of infancy; systemic forms involve eye, CNS, liver, lung.

Juventae Cavi

Juventae Cavi is an IAU-approved cavus (irregular depression) on Mars, 94.40 km across, centered at 3.91°S, 301.84°E in quadrangle MC-18, approved November 1, 2014, named from a Greek classical albedo feature, distinct from nearby Juventae Chasma.

Juventae Chasma

Juventae Chasma, a ~5-7 km deep depression north of Valles Marineris on Mars, merges chaotic terrain and a tectonic chasm and hosts four sulfate-rich light-toned mounds (A-D) with a Maja Vallis outlet.

Juventae Mensa

Juventae Mensa, named for the classical albedo feature Juventae Fons, is a 116 km wide IAU-approved mesa on Mars at 7.93°S, 294.37°E, a sulfate-rich light-toned layered deposit in Juventae Chasma north of Valles Marineris.

Juventae Mons

Juventae Mons, also Juventae Fons, is a 147-km-diameter IAU-named mountain of layered sulfate deposits in Juventae Chasma north of Valles Marineris, Mars, part of four light-toned mounds A–D of lacustrine origin.

Oct 15, 2026

Juventas

Juventas is a 6U CubeSat built by GomSpace in Luxembourg for ESA's Hera mission, which will make the first radar soundings inside the asteroid Dimorphos and then land on it.

Juventas Therapeutics (合源生物)

Juventas Therapeutics (合源生物) is a Chinese immune-cell therapy biopharmaceutical company in Tianjin, founded in June 2018 by hematologist Lü Lulu to develop CAR-T cancer treatments.

Juventud Demócrata Cristiana de Chile

The Juventud Demócrata Cristiana (JDC) is the youth organization of Chile's Christian Democratic Party, founded in 1957 to promote Christian humanist ideals among young Chileans.

Juventud Guerrera

Juventud Guerrera, son of Fuerza Guerrera, is a Mexican luchador who starred in AAA, ECW, WCW (Cruiserweight Champion, Filthy Animals), and WWE's Mexicools, and now runs his own promotion, Super X.

Juventus FC

Juventus FC, also called Juve or the Bianconeri, is a Turin-based Serie A club founded 1 November 1897, Agnelli-family controlled since 1923, publicly listed, owner of the Allianz Stadium, and currently under UEFA financial monitoring.

Juventus Stadium

Juventus Stadium, known as the Allianz Stadium, is the football stadium in Turin, Italy, owned by Juventus F.C.; it opened in 2011 and holds over 41,000 spectators.

Juwan Howard

Juwan Howard (born 1973, Chicago) is a former NBA forward, Fab Five member at Michigan, 1994 fifth overall pick, two-time NBA champion with the Miami Heat (2012, 2013), Michigan head coach 2019-2024, and Brooklyn Nets assistant coach since 2024.

Juwanna Mann

Juwanna Mann (2002) is an American sports comedy directed by Jesse Vaughan, starring Miguel A. Nunez Jr. as suspended NBA player Jamal Jeffries, who disguises himself as a woman to play in the WUBA; it grossed $13.8 million worldwide against a $15.6 million budget.

Oct 10, 2026

Juwayriyya ibn Asma' al-Dabbi

Juwayriyya ibn Asma' al-Dabbi (جويرية بن أسماء الضبعي) was a Basran hadith transmitter who died in 173 AH and appears in the chains of Sahih al-Bukhari and Sahih Muslim.

Juweiyuanchuang (苏州聚维元创生物科技有限公司) (聚维元创)

Juweiyuanchuang (聚维元创) is a Chinese synthetic-biology startup headquartered in Suzhou, incubated from Tsinghua University in 2018, that converts agricultural straw into succinic acid and other bio-based products.

Oct 15, 2026

JUWELS

JUWELS (Jülich Wizard for European Leadership Science) is a modular supercomputer at Forschungszentrum Jülich in Germany, with a 2018 Cluster module and a 2020 GPU Booster.

Juwensley Onstein

Juwensley Onstein, Dutch centre-back born 2007 in Arnhem; ex-Ajax youth and Jong Genk defender; joined FC Barcelona's Barça Atlètic in January 2026 on a contract to June 2028; Netherlands U18 international.

Juxtaglomerular apparatus

Juxtaglomerular apparatus (JGA), kidney structure at the glomerular vascular pole: granular renin-secreting cells, macula densa (~20 cells), and extraglomerular mesangium; mediates tubuloglomerular feedback and renin release via baroreceptor, macula densa, and sympathetic mechanisms.

Juxtapose Ventures

Juxtapose Ventures is a New York venture capital firm and venture studio founded in 2015 by Patrick Chun and Jed Cairo, which builds its own companies.

Juxtaposition

Juxtaposition: placing things side by side to contrast or compare; in linguistics, parataxis linking clauses without connectives; recorded in English since 1654 from Latin juxta 'near' plus position.