SKU: 83743669540

Hereditärer Katarakt (HSF4) - Australian Shepherd

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Description

Hereditärer Katarakt (HSF4) - Australian ShepherdKatarakt ist eines der hufigsten erblichen Probleme bei Australian Shepherds und sicherlich die hufigste vererbbare Augenerkrankung dieser Rasse. Typisches klinisches Zeichen ist die Trbung der Augenlinse, die zur Erblindung fhrt. Die primre vererbte Form der Krankheit tritt bei etwa 100 Hunderassen auf, aber trotz ihrer Hufigkeit ist die genetische Grundlage schlecht verstanden. Bis heute wurde nur das HSF4 Gen mit erblichen Katarakten bei Hunden in

Katarakt ist eines der häufigsten erblichen Probleme bei Australian Shepherds und sicherlich die häufigste vererbbare Augenerkrankung dieser Rasse. Typisches klinisches Zeichen ist die Trübung der Augenlinse, die zur Erblindung führt. Die primäre/vererbte Form der Krankheit tritt bei etwa 100 Hunderassen auf, aber trotz ihrer Häufigkeit ist die genetische Grundlage schlecht verstanden. Bis heute wurde nur das HSF4-Gen mit erblichen Katarakten bei Hunden in Verbindung gebracht und ist auch verantwortlich für die Entwicklung der Krankheit bei Australian Shepherds, Boston Terriern, Staffordshire Bull Terriern und Französischen Bulldoggen.

Die Vererbung der Krankheit ist relativ komplex aufgrund ihres autosomal dominanten Modus und der unvollständigen Penetranz, was bedeutet, dass nicht alle heterozygoten Tiere die Krankheit entwickeln. Die klinische Manifestation variiert erheblich. Pathologische Veränderungen entwickeln sich an verschiedenen Teilen der Linse, der Beginn der Krankheit variiert von der frühen Erwachsenenzeit bis zum Rand des Alters, und der Verlauf der Krankheit ist ebenfalls sehr variabel. Diese Fakten deuten darauf hin, dass andere noch unbekannte genetische und Umweltfaktoren zur Krankheitsentwicklung beitragen. Laut der wissenschaftlichen Literatur ist die Wahrscheinlichkeit, die Krankheit zu entwickeln, bei HSF4-heterozygoten Tieren 17-mal höher im Vergleich zu HSF4-clear Tieren. Der Test kann andere genetische Defekte nicht ausschließen, die möglicherweise an der Entwicklung der erblichen Katarakt bei Australian Shepherds beteiligt sind.

Bei Boston Terriern, Staffordshire Bull Terriern und Französischen Bulldoggen finden wir zwei Arten von erblichen Katarakten. Die früh einsetzende erbliche Katarakt (EHC) betrifft Hunde im Alter von wenigen Wochen, ist immer progressiv und bilateral und führt zu vollständiger Erblindung. Die spät einsetzende erbliche Katarakt (LHC) betrifft normalerweise Hunde über 3 Jahre und ist in ihrem klinischen Phänotyp, dem Alter des Auftretens, dem Verlauf und dem Grad der Sehbeeinträchtigung variabler. Die Mutation im HSF4-Gen wurde nur bei Hunden berichtet, die von EHC betroffen sind.

Vererbung: autosomal dominant (unvollständige Penetranz) - Australian Shepherd -;

autosomal rezessiv - Boston Terrier, Staffordshire Bull Terrier und Französische Bulldogge -.

Mutation: HSF4-Gen

Gentest: Die verwendete Methode zum Testen ist äußerst genau und ermöglicht eine vollständige Differenzierung zwischen betroffenen Tieren, Trägern und gesunden Hunden. Der Test kann in jedem Alter durchgeführt werden.

Australian Shepherd: Da die Krankheit autosomal dominant mit unvollständiger Penetranz ist, wird sie sich bei den meisten Tieren manifestieren, die mindestens ein mutiertes Gen tragen. Solche heterozygoten Tiere werden klinische Anzeichen zeigen, die ihre Lebensqualität beeinträchtigen. Mit der Absicht, die Krankheit auszurotten, ist es nicht ratsam, betroffene und Träger-Tiere zu züchten.

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SKU: 83743669540

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4.0 ★★★★★
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K
Kimie611
Charlottesville, US
★★★★★ 4
Fast paced spicy read.
Format: Kindle
Luke owns a winery. His best friends Beckett and Hudson are helping him with the business, but he still needs help with his 4 year old son, Charlie. Ali is supposed to be applying to art school, but she is blocked. She hasn’t been able to find her creativity, so she interviews for a nanny position. Instantly, she finds herself attracted to Luke and Beckett, and falls in love with Charlie. Even after a disastrous interview, the guys find something intriguing about her and offer her the position. She has no choice to take the position because a wildfire quickly cuts off her route. Ali falls into a comfortable pattern with the guys. Taking care of Charlie, helping save the winery and growing closer to the guys. It doesn’t take long before she finds herself wrapped up with all the guys any chance they get. And surprisingly, she finds herself painting once again. Along the way, the guys help her realize that she truly belongs with them. The sexy times were hot with a few sexy surprises. The story was well written. It was a quick, spiced read.
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Reviewed in the United States on September 9, 2025
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Verified Purchase
vicky
Birmingham, US
★★★★★ 5
Be prepared to be drawn in and captivated!
Format: Kindle
Three strong handsome men and an adorable little boy in need of a nanny. A nanny who finds everything she needed for her home. A wildfire burning out of control threatens everything. Fighting to save his vineyard and protect his family. Taking steps to help the community as it starts to recover from the disaster.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 11, 2025
R
❤️ 2read
Fort Morgan, US
★★★★★ 3
Ali and the guys
Format: Kindle
The story of a lost art student that needs direction. Decides to nanny for a winery owner and his best friends/employees. Fires and lockdowns happen and relationships start. Lots of spice sometimes a little too much I found myself skimming over the parts. Happy ending
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Reviewed in the United States on January 30, 2026
M
MS. SHAWN M. LINDSAY
Chelsea, US
★★★★★ 5
Artist Inspiration
Format: Kindle
Ali Fairfax is a twenty-seven year old painter. She is going to an interview for a job as a nanny. She wants to go to art college but has no portfolio pieces to submit. For the last year, her mind goes blank the second she picks up a brush. The nanny interview is at Ashford Winery. Luke Ashford has a son named Charlie who is almost five. Beckett Montgomery is one of Luke’s best friends and he helps Luke run the winery. Hunter Jones is Luke’s other best friend and he is the marketing director for the winery. The men have been running the winery for the last year or so. Charlie likes Ali and so does Luke, so he hires her. Charlie is into reptiles and he also makes Ali make a grilled cheese sandwich for his snack. Hunter comes in the kitchen to tell them that the winds have shifted and there are wildfires nearby. All the roads in or out of the valley are closed down for now. Ali is stuck at the winery with the men and Charlie. Interesting dynamic between the three best friends. I loved that being stuck at the winery inspired Ali to start painting again. I enjoyed the story. I received a free copy of this book via Booksprout and am voluntarily leaving a review.
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Reviewed in the United States on September 30, 2025
J
Jenny Harris
Phoenix, US
★★★★★ 4
So So Good
Format: Kindle
I received this book with the understanding that I could leave a voluntary and honest review. In this book we meet Ali Firfax, Luke Ashford, Beckett Montgomery, & Hunter Jones. Ali is ready for a new adventure in her life. Though her mother worries about her she is determined to do her own thing. When she gets to the house though she can't believe how attractive all the men who live there are. Luke's first priority is defiantly his son, one look at Alit though has him wondering if he has been to narrow minded. When he two roommates realize who Ali is they will do anything they can to keep her there. When mother nature tends to help them they know they will do anything to keep her. Can they all find a HEA or will mother nature make sure none of them have a future? Amazing story by this author. I would highly recommend it to anyone.
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Reviewed in the United States on October 13, 2025

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